Fluke PM6685R, PM6681R manual Power-on Status Clear, Summary, Device-defined Status Reporting

Using the Subsystems

You set the limits with the following commands in the calculate subsystem.

:CALCulate:LIMit:UPPer and :CALCulate:LIMit:LOWer

An example on how to use limit monitor- ing is available in Chapter 4, ‘Program Examples.’

Bit Definition

Device Status Register0

STAT:DREG0:COND?

STAT:DREG0?

15 2 1 0

4 2

Monitoring of high limit

Monitoring of low limit

Figure 6-14Bits in the Device Status Register number 0.

:STATus:DREGister0?

Reads out the contents of the Device Status event Register 0 and clears the register.

Bit 2 (weight 4) — Monitor of Low Limit

This bit is set when the low limit is passed from above.

Bit 1 (weight 2) — Monitor of High Limit

This bit is set when the high limit is passed from below.

￿Summary, Device-defined Status Reporting

:STAT:DREG0:ENAB <bit mask>

Enable reporting of device-defined status in the status byte.

*SRE 1

Enable SRQ when a limit is exceeded.

:STAT:DREG0?

Reading and clearing the event register of Device Register structure 0.

–If bit 1 is true, the high limit has been ex- ceeded.

–If bit 2 is true, the low limit has been ex- ceeded.

Power-on Status Clear

Power-on clears all event enable regis- ters and the service request enable regis- ter if the power-on status clear flag is set TRUE (see the common command *PSC.)

￿Preset the Status Reporting Structure

You can preset the complete status struc- ture to a known state with a single com- mand, the STATus:PRESet command, which does the following:

–Disables all bits in the Standard Event Register, the Operation Status Register, and the Questionable Data Register

–Enables all bits in Device Register 0

–Leaves the Service Request Enable Regis- ter unaffected.

6-26 Status Subsystem